Originally Posted by
GeoKrpan
I don't recall ever hearing a warning about using a 12-34 on a road hub, and, I have seen plenty of people do it. I don't think the "massive" torque of one gear inch is going to matter.
The OP (and anyone else) is welcome to do whatever they want with their bikes, I just felt like passing the manufacturer's thoughts along. /shrug
Like I said earlier, I think a smaller granny ring is a better solution anyway. That, and getting in better shape if they're considering such low gearing.